Question

1)what are chemical changes?

2)what are the two types of vanishes found in leaves ?

3)what is an electric curcuit what is an electric switch?

4)what will be the colour of shadow if you wear red colour dress?

5)which process are involved in formation of cloud ?

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Answer 1

Answer:

1) Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.

2) The arrangement of veins and veinlets on the lamina of a leaf is called venation. There are two types of venation, reticulate and parallel venation

4) If I will wear the red colour dress my shadow will be of black colour only.

Answer 2

Answer:

2. The arrangement of veins and veinlets on the lamina of a leaf is called venation. There are two types of venation, reticulate and parallel venation.